I see more buggies with wrong tire pressure than right.
This includes stock buggies.
Here's how to determine if your tires are at proper pressure.
Proper inflation is important to your safety and tire life.

You can also drive is the grass, that will clean the tires. Then drive on road or parking lot. The dirt on the tire will show you inflation as well as toe.

My method is very similar. I have a limerock road next to my house and when I drive across it and then onto my drive you can distinctively see the white across the tires to indicate toe and I honestly use the tire pressure gauge to accurately maintain my tires....

If the chalk is staying on or leaving less on the ground on either the inside or outside of tire , then that part of the tire is not making the same contact with the ground as the rest of tire. The chalk mark should be the same all the way across the tire.
I hope that makes sense.

And to clarify to Redbeardcc in case I confused him, what I should have explained in more detail is when I come off the limerock road, I can see if the white color is rubbing (scrubbing) off one or the other and know to check my Toe. I actually do this with a tape measure by measuring the tires front out side edge across to the other tires outside edge and then the same on the back side of the tires outside edge as close to 180 degrees as possible. I try to maintain ~1/4" or just a hair less to be toed-in on the front. Anything less and it drives really squirrely anything more and you are dragging. I adjust the camber similarly but run the tape across the top and the bottom of the tires and then run it across the lime rock to see how the contact pattern looks.

Sorry if I was too vague in my previous post as even when I re-read it I confused my self!

And to clarify to Redbeardcc in case I confused him, what I should have explained in more detail is when I come off the limerock road, I can see if the white color is rubbing (scrubbing) off one or the other and know to check my Toe. I actually do this with a tape measure by measuring the tires front out side edge across to the other tires outside edge and then the same on the back side of the tires outside edge as close to 180 degrees as possible. I try to maintain ~1/4" or just a hair less to be toed-in on the front. Anything less and it drives really squirrely anything more and you are dragging. I adjust the camber similarly but run the tape across the top and the bottom of the tires and then run it across the lime rock to see how the contact pattern looks.

Sorry if I was too vague in my previous post as even when I re-read it I confused my self!

Your right. castor(Jimmy Castor Bunch: Troglodyte),camber, toe in, toe out.
I have always avoided front end work because my brain goes into mass confusion when it starts havin to process front end terms.
If you start using terms like, idler arm and tie rods, I going to hide in a corner.
Muddog